package wjio;

import java.io.File;
import java.io.IOException;

public class demo2_0525 {
    public static void main(String[] args) throws IOException {
        File f = new File("./test.txt");
        System.out.println(f.exists());
        System.out.println(f.isFile());
        System.out.println(f.isDirectory());

        System.out.println(f.createNewFile());
    }
}
